Lift-catch for bags.



c. E. BRADSHAW.

LIFT CATCH FOR BAGS. APPLICATION FILED JULY 15.1918.

1,282,533. Patented Oct. 22, 1918. FJ. Zz/qjlQE 7 IIIIIII.

II IIIIIIIIIIIIIIII IIII'IIIIIIIIIIIiiI cHnBLEs E. BRADSHAW, or WATERBURY, QONNECTIQUT, AssIeNoR T0 woncns'rnn 'M 'TIL" monseoneam, o 'wA'rEa UnY, CQ-NNECTICUT, a ooaronnrrion' 0E ms e avsm Specification of Letters Patent.

LIF -onion roaBA s.

Patented Oct. 22, 191 8.

Application filed July 15, 1918. Serial No. 244,869.

' To. all whom may concern:

tain new and useful Improvement in Lift- Catches for Bags, of which the following is a full, clear, and exact description.

.My invention relates to lift catches for bags and has for its object the production of a new and improved lift catch in which the friction is reduced so as to resultin improved action. 7

It further has for its object to provide a lift catch having a spring frame upon which the catch plate is mounted so as to have bearings independent of the catch housing. It further has for. its object to provide "a lift catch'having a spring frame for holding it in either open or. closed position, one arm of which actsto, support the lifting catchplate while the other arm performs the hold- I ing functions. It further has for its object to provide a lift catch having a lifting catchplate whose supporting pin does not engage 'thehousing of the lift catch.

' difica n;

The following. is a description of an embodiment of my invention, reference being had to the accompanying drawings, in which,

' Figure l'shows a'bottom plan view of a lift catch embodying my invention;

Fig. 2 shows a longitudinal sectional view of the same;

Fig. 3 shows a bottom plan view of a Fig. 4; shows a View in side elevation, with parts broken away to show details of construction Fig. 5 is a plan View of the spring formcatches of. Figs. 1 to 4;

Fig. 6 is a bottom plan view of a modification of my invention;

Fig.7 is a sideelevation of the same with r parts broken away;

Fig. 8 is a detail of the constructions shown in Figs. 6 and 7;

Fig. 9isa partial bottom'plan view showing another modified detail, and

1 Fig. 10 is a side elevation of the same with pa s r e a ay- Referring more particularly to the drawings, 1 is, a housing having lugs 2'2 for securing it to a bag frame in the ordinary manner, The body portion of this housing is box-shaped and is provided with up wardly extending struck up portions forming recesses 33- for housing certain portions of the spring frame and parts carriedthereby, being drawn up in this form from sheet metal. Within the housing is a spring frame composed of a spring 4 shown in detail in Fig. 5 and a tubular bearing member 5 carried by the spring 4:, the ends of said spring being bent inward and also bent slightly so that the inwardly bent ends.

I of the tubular bearing are free from all frictional engagement. Inasmuch as the tubular member 5 turns upon the inturned ends of the spring, which ends are of small diameter, the friction due to such turning is slight. The spring 4 is held "within the housing 1 by lugs 66, which are located on each side of one of the projections 2 and are bent down so as to engage the rear end por tions of the spring 4. The lugs 6, being formed from metal adjacent to the lug 2, are formed from metal which would otherwise be waste metal, and therefore do not require metal such as will add to the cost of the catch. 7 is the catch-plate having the catch member 8 riveted thereto at right angles in the ordinary'manner. The catch plate 7 is provided at its pivotal end with extensions 9-9, which are bent around the tubular bearing member 5 so as to secure the catch plate member thereto. Bet-ween the extensions 99 is another extension 10 forming a portion of the hub of the plate and upon which the tongue 11 and the spring 4 bear so as to hold the catch ineither open or closed position in the ordinary manner.

The spring 4 of the spring-"frame is shown I in detail in Fig. 5, and while the same can be stamped out of sheet metal, I preferably form it of round steel wire, as shown in within the housing and bend down the lugs 6 so as to hold thesame in position. 'After forming-the lift plate 7 with the catch 8 riveted thereto, the extensions 9 being partially bent but so formed that the plate can be applied. to the housing in the position shown in Fig. 2, with the extensions 9 projecting upwardly, I apply the plate and then bend the extensions 9 around the tubular member 5, whereupon the formation of the liftcatch is completed ready to be attached to the bag frame, the tubular member being carried by the spring 4: with its external end surfaces entirely out of engagement with the housing or any bearing carried thereby, and the spring 4 acting notonly to entirely support the tubular bearing 5 and "furnish bearings therefor, but having its end 11 in engagement with the holding extensionv 10 so as to hold the catch plate in either open or closed position.

The construction shown in Figs. 3 and 4 is the same as the construction shown in'Figs. 1 and 2, with the exception that instead of employingspring-holding lugs 6-6 adja cent'to one of the end lugs, I form lugs 1212 on the side of the housing which are bent down and engage the outside members of the spring 4. In both cases the lugs are symmetrically disposed and engage symmetrical portions of the frame.

In the'construction shown in Fig. 6, the

- spring-frame 1 is made of sheet metal and the hollow bearing member'is formed in-. tegral therewith so as to be fixed thereto" and held spaced away from the housing. This bearing member is formed by bending up a tang 13 cut out from the body of the spring-frame and bent into semi-cylindrical form as shown in Fig. 7. The end 14; of the spring-frame is also bent into semi-cylindrical form so that the two portions form r a round hollow bearing, as, shown in Fig. 7,

and the lugs 9 of the liftplate are bent around this hollow bearing in the same manner as they are bent around the member 5 of Figs. 1 and 2. The spring frame is held in position by lugs 6 similar to the lugs 6. The spring-frame in Figs. 6 and 7 is shown as formed from a single strip of metal, the portion 11 being bent over on top of the other portion and bearing upon the extension 10 of the catch-plate to hold'the platevin either its open orits closed position.

The spring-frame, when made of sheet metal, can be made of two portions as shown in Figs.;9 and 10, the two separate parts 4 and 11 being clamped at their right hand lower' portion of the spring-frame tubular member in this instance, however, is, entirely supported by the spring frame as ends by lugs 6 as shown. In the form shown in Figs. 6 and 7, the catch-plate turns upon the tubular bearing, the latter being heldstationary because integral withithe The in the construction shown in Figs. land 2, and does not make lateral engagement with any portion ofthe housing, the spring frame, together with the bearing for the lift plate, being formed as a complete structure before being mounted in the housing, which feature I believe 'to be an entirely novel featurein; devices of this character and having advantages in manufacture, although, on account of the reduction in friction, I prefer to use the construction shown in Fig. 1, in which'the tubular bearing mem ber turns upon the ends of the spring portion of the spring-frame: s

As will be evident to those skilled in the art, other modifications may be made of my invention without departing from the spirlt thereof orthe scope of. the appended claims.

What I claim is: 1.11; a lift'catch, the combination of a housing, a frame mounted within said housing, a tubular bearing carried by said frame so as to be spaced from said housing, a catch plate having, extensions projecting through said housing and surrounding said tubular bearing, and means 'for' securing said frame to said housing.

2. In a lift catch, the combination of a housing, a spring-frame mounted within said housing, a tubular bearing carried by said frame so as to be spaced away from said housing, a catch plate having extensionsprojecting through said housing'and surrounding said tubular bearing, said frame having a centrally located projection engaging the hub portion of said catch plate, and means for securing said frame to said housing.

3. In a lift catch, the combination ofa housing having upwardly extending struck with the axes of said recesses, a tubular; bearing carried by said inturned ends and adapted to revolve therein free from external friction at its ends, a catchplate having extensions projecting through said housing and surrounding said-tubular bearing, said spring having a central projection extending beyond said tubular bearing and en gaging the hub of said catch plate between said extensions, and meansfor securing said spring-frame in said housing.

5. In a lift catch, the combination of a hub portion of said catch plate, and symhousing, a frame mounted Within said housmetrically disposed holding lugs integral ing, a tubular bearing carried by said frame, with said housing and engaging syma catch plate having extensions projecting metrically disposed portions of said spring- 5 through said housing and surrounding said frame so as to hold it in said housing.

tubular bearing, said spring-frame having a centrally located projection engaging the CHARLES E. BRADSHAW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

